 Apparently following orders of the Comintern, during the early 1920s he became a founding member of the Cuban Communist Party.After in 1922 entering the Young Communist League of Poland, and additional Communist activities he may have been sentenced to death and this may have obliged him to leave Poland to settle in Cuba.He played an important, though generally undocumented, role in guiding the political leadership of Cuba's 1959 Revolution along a socialist path.